Understanding Endoscopic Myringoplasty Techniques

Surgeons frequently utilize various Endoscopic Myringoplasty Techniques to repair chronic tympanic membrane perforations. A recent study analyzed 120 patients with chronic otitis media to determine the effectiveness of underlay versus overlay approaches. Both surgical groups used tragus perichondrium as the graft material. Consequently, the research provides valuable insights into anatomical and functional outcomes for otolaryngologists.

The study results indicated that the overlay group achieved a significantly higher graft uptake rate of 98.4%. In contrast, the underlay group showed a success rate of 89.3%. Furthermore, researchers noted that the overlay method effectively addresses large or anterior perforations. However, this high success rate comes with specific surgical trade-offs that practitioners must consider during clinical decision-making.

Choosing the Right Surgical Approach

While the overlay technique offers superior graft uptake, it requires a higher level of surgical precision. The study found that operative time and mean blood loss were significantly higher in the overlay group. Additionally, two cases in the overlay group developed epithelial cholesteatoma beads postoperatively. Therefore, the complexity of the overlay method might increase the risk of specific iatrogenic complications.

Conversely, the underlay method proved to be less invasive and faster to perform. Surgeons generally find this technique easier to master, which may reduce the overall surgical burden. Interestingly, hearing outcomes showed no significant differences between the two techniques. Both groups experienced comparable improvements in the postoperative air-bone gap. Moreover, CT examinations confirmed the absence of middle ear cholesteatoma in both cohorts.

Frequently Asked Questions

Which technique offers a better graft success rate?

The overlay technique demonstrated a significantly higher graft success rate of 98.4% compared to 89.3% for the underlay technique in this study involving 120 patients.

What are the primary disadvantages of the overlay method?

The overlay method involves longer operative times and a higher risk of forming epithelial cholesteatoma beads. It also requires greater surgical precision compared to the underlay technique.

Do hearing outcomes differ between underlay and overlay myringoplasty?

No, the study found no significant difference in postoperative hearing outcomes. Both techniques effectively reduced the air-bone gap to approximately 11 dB.

Disclaimer: This content is for informational and educational purposes only and does not constitute medical advice or a substitute for professional healthcare. Always seek the advice of your physician or other qualified health provider with any questions regarding a medical condition. Refer to the latest local and national guidelines for clinical practice.

References

1. Cui X et al. Comparison of Underlay and Overlay Techniques With Perichondrium in Endoscopic Myringoplasty to Repair Chronic Perforation. Ear Nose Throat J. 2026 Jun 06. doi: 10.1177/01455613261459302. PMID: 42249741.


2. Arshad M, et al. Comparison of graft uptake in patients undergoing myringoplasty or tympanoplasty by overlay and underlay procedure. Professional Med J 2019; 26(11):1861-1865.


3. Khawaja M, et al. Comparison of graft uptake by underlay and overlay technique in myringoplasty. J Ayub Med Coll Abbottabad 2020;32(Suppl. 1):640–3.